Upgrading PC

Thanks in advance for any help.

I'm using a reasonably powerful laptop which has a dicky drive that I have to replace so wondered if as its been going a few years if other improvements could be made at same time to enhance performance. my main areas of work are large size photo editing  and video editing.

Grateful for any suggestions.

here is the spec

OS Name             Microsoft Windows 10 Pro

Version                10.0.17134 Build 17134

Other OS Description     Not Available

OS Manufacturer             Microsoft Corporation

System Name    DESKTOP-IT4S1LF

System Manufacturer    Dell Inc.

System Model   Precision M6700

System Type      x64-based PC

System SKU        Precision M6700

Processor            Intel(R) Core(TM) i7-3720QM CPU @ 2.60GHz, 2601 Mhz, 4 Core(s), 8 Logical Processor(s)

BIOS Version/Date          Dell Inc. A15, 19/08/2015

SMBIOS Version               2.7

Embedded Controller Version    255.255

BIOS Mode         UEFI

BaseBoard Manufacturer             Dell Inc.

BaseBoard Model            Not Available

BaseBoard Name             Base Board

Platform Role    Mobile

Secure Boot State            Off

PCR7 Configuration         Binding Not Possible

Windows Directory         C:\WINDOWS

System Directory             C:\WINDOWS\system32

Boot Device        \Device\HarddiskVolume2

Locale   United Kingdom

Hardware Abstraction Layer        Version = "10.0.17134.1"

Username           DESKTOP-IT4S1LF\Allan

Time Zone           GMT Summer Time

Installed Physical Memory (RAM)             16.0 GB

Total Physical Memory  15.9 GB

Available Physical Memory          12.4 GB

Total Virtual Memory     18.8 GB

Available Virtual Memory             15.5 GB

Page File Space 2.86 GB

Page File              C:\pagefile.sys

Kernel DMA Protection Off

Virtualisation-based security      Not enabled

Device Encryption Support          Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and the device is not InstantGo, Un-allowed DMA-capable bus/device(s) detected, TPM is not usable

Hyper-V - VM Monitor Mode Extensions              Yes

Hyper-V - Second Level Address Translation Extensions Yes

Hyper-V - Virtualisation Enabled in Firmware      Yes

Hyper-V - Data Execution Protection       Yes

Name    NVIDIA Quadro K4000M